Sunday, December 06, 2009
East Anglia CRU results are reliable and reproducible
Acknowlegements to NOAA. This link also gives an important explanation for the graph.
Click on the figures to see in their entirety.
OK. The Climate Research Unit (CRU) at East Anglia University has taken a pasting recently.
In previous blogs here Phil Jones' "trick to hide the decline" has been shown to have no relevance to the scientific data, only to the appearance of a graph on the front of a report,
and Kevin Trenberth's expression of frustration ("travesty") was all about an abstruse problem with data from the outer atmosphere.
Those are the most serious verbal statements. The next challenge is the CRU computer codes, which have to do immensely complex calculations to allow for altitude and other variables on each collecting station. The CRU codes appear to be sub-prime.
The sceptics are therefore working to undermine the credibility of CRU work, which underpins the "uptick" - sharp increase in modern temperatures - seen on this most important graph here.
Given that they have undermined the credibility of CRU - until such time as an inquiry has examined the effects of the poor coding - we need independent confirmation that their results are reliable.
Three copies of the raw data on temperature records are kept, one by the National Meteorological Services, one by NOAA, and one by NASA.
The NOAA graph is shown above, with CRU for comparison.
We can see that there is no substantive difference.
Therefore, there is no reason to doubt the credibility of the most important graph - the temperature record of the planet, which is most clearly "spiking a fever" as we doctors call it.
So there we have it. Despite a burglary, a hack, and a coordingated attack, the Business As Usual lobby have failed to discredit the key point of climate science - global temperatures are rising at a rate and to a level that is unprecedented in the last 2000 years.
There is only one rational, reasonable political response - for all the world except the tiny coterie of free market fundamentalist "skeptics" to call for, agitate for, and pray for a clear, legally binding agreement in Copenhagen.